Title:
Electric discharge tubes
United States Patent 2783408


Inventors:
John, Williams David
Clifford, Bacon Raymond
Reginald, Acton John
Application Number:
US34607853A
Publication Date:
02/26/1957
Filing Date:
04/01/1953
Assignee:
ERICSSON TELEPHONES LTD
Primary Class:
Other Classes:
313/589, 345/41, D13/180, D18/26
International Classes:
H01J17/49
View Patent Images:
US Patent References:
2735038N/A1956-02-14
2618760Glow tube anode construction1952-11-18
2618697Two-way sectional read-out tube1952-11-18
2142106Signaling system and glow lamps therefor1939-01-03